Abstract
The authors describe a patient who may be taken to represent a man with abnormally hyperactive "pressor reflex" in response to the distension of the bladder in spite of the absence of gross injury to the spinal cord. His blood pressure rose by 45/25 mmHg in response to the physiological and slow artificial distension of the bladder. Besides this peculiarity, this patient had urographic evidences of the bilateral hydronephrosis presumably complicated with chronic pyelonephritis, and hypertension possibly through this renal mechanism and possibly O'conor type hypertension.
